From ccc7eea11417297bbabb40e27e743cf05c2b8180 Mon Sep 17 00:00:00 2001
From: chyyuu <yuchen@mail.tsinghua.edu.cn>
Date: Wed, 8 May 2019 19:08:04 +0800
Subject: [PATCH] add ioctl request id: FIONBIO (no real action, just return
 Ok(0)). p.s. for rustc

---
 kernel/src/fs/file_like.rs | 1 +
 kernel/src/fs/ioctl.rs     | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/kernel/src/fs/file_like.rs b/kernel/src/fs/file_like.rs
index ae5ae6b..5e847f1 100644
--- a/kernel/src/fs/file_like.rs
+++ b/kernel/src/fs/file_like.rs
@@ -34,6 +34,7 @@ impl FileLike {
         match request {
             // TODO: place flags & path in FileLike in stead of FileHandle/Socket
             FIOCLEX => Ok(0),
+            FIONBIO => Ok(0),
             _ => {
                 match self {
                     FileLike::File(file) => file.io_control(request as u32, arg1)?,
diff --git a/kernel/src/fs/ioctl.rs b/kernel/src/fs/ioctl.rs
index 3eb3509..45bdebd 100644
--- a/kernel/src/fs/ioctl.rs
+++ b/kernel/src/fs/ioctl.rs
@@ -34,3 +34,7 @@ pub const FIONCLEX: usize = 0x6602;
 pub const FIOCLEX: usize = 0x5451;
 #[cfg(target_arch = "mips")]
 pub const FIOCLEX: usize = 0x6601;
+
+// rustc using pipe and ioctl pipe file with this request id
+// for non-blocking/blocking IO control setting
+pub const FIONBIO: usize = 0x5421;
\ No newline at end of file